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Next-working-day delivery*

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iiyama ProLite X4373UHSU-B2 - LED monitor - 43" (42.5" viewable) - 3840 x 2160 4K @ 60 Hz - VA - 450 cd/m� - 4000:1 - HDR10 - 3 ms - 2xHDMI, DisplayPort - speakers - matte, black

Name: iiyama ProLite X4373UHSU-B2 - LED monitor - 43" (42.5" viewable) - 3840 x 2160 4K @ 60 Hz - VA - 450 cd/m� - 4000:1 - HDR10 - 3 ms - 2xHDMI, DisplayPort - speakers - matte, black
Brand: Iiyama
SKU: X4373UHSU-B2
Price: 412.79 GBP
Availability: InStock

Manuf P/N: X4373UHSU-B2

Stock1

ConditionNew

Exc. VAT

£412.79

Inc. VAT £495.35

Quantity

Notify me when available

Sales & Technical

Phone: 0161 464 9941

Email: sales@apaxon.co.uk

Manufacturer Warranty

Manufacturer warranty applies. Warranty periods and service levels vary by brand and product type.

Apaxon® is an authorised reseller of Iiyama. Warranty claims, repairs, replacements, and credits are fulfilled strictly in accordance with the manufacturer's terms and conditions.

Returns Policy

Business & Consumer Purchases

Orders placed for business use, resale, or onward supply are treated as Business-to-Business (B2B) transactions. B2B sales do not carry an automatic right of cancellation.

Nothing in this policy affects statutory consumer rights under UK law.

Consumer Cancellation (B2C Only)

Consumers may cancel within 14 days of delivery under the Consumer Contracts Regulations 2013.
Cancellation must be confirmed in writing within 14 days of delivery.
Goods must be returned within 14 days of cancellation.
Items must be unused beyond reasonable inspection and in resaleable condition.
Return shipping costs are the customer's responsibility.
Prepaid return labels are not provided for change-of-mind returns.
Refunds are processed after inspection and issued to the original payment method.

Faults & Delivery Issues

Transit damage or shortages must be reported within 48 hours of delivery.
Visible defects must be reported within 7 days of delivery.
Hidden faults must be reported within 7 days of discovery.
Returns require prior authorisation and a valid RMA reference.
Failure to report within these timeframes may affect eligibility for return or claim.

Business Returns (B2B)

Business customers do not have an automatic right to return non-faulty goods.

Supply chain authorisation
Restocking fees (typically 15–25%)
Inspection approval
Non-refundable outbound carriage

Return shipping is the responsibility of the buyer unless agreed otherwise.

Non-Returnable Items

Software, licences, activation keys, and digital products
Special-order or non-standard procurement items
Opened consumables
Items not in resaleable condition

Overview

iiyama ProLite X4373UHSU-B2, 108 cm (42.5"), 3840 x 2160 pixels, 4K Ultra HD, LED, 3 ms, Black

Specifications

Display

Touchscreen: No
High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)
Display diagonal: 108 cm (42.5") cm
Display resolution: 3840 x 2160 pixels pixels
Native aspect ratio: 16:9
Display technology: LED
HD type: 4K Ultra HD
Panel type: VA
Response time: 3 ms ms
Screen shape: Flat
Contrast ratio (typical): 4000:1
Maximum refresh rate: 60 Hz Hz
Display number of colours: 1.07 billion colours
Display brightness (typical): 450 cd/m² cd/m²
Response time measurement type: GTG (Gray to Gray)
Contrast ratio (dynamic): 80000000:1
Viewing angle, horizontal: 178° °
Viewing angle, vertical: 178° °
Pixel pitch: 0.245 x 0.245 mm mm
Horizontal scan range: 30 - 135 kHz kHz
Viewable size, horizontal: 94.1 cm cm
Viewable size, vertical: 52.9 cm cm
Display diagonal (metric): 108 cm cm
High Dynamic Range (HDR) supported: Yes
Colour depth: 10 bit bit
Colour gamut standard: NTSC, sRGB
sRGB coverage (typical): 100% %
NTSC coverage (typical): 85% %

Weight & dimensions

Height (with stand): 621.5 mm mm
Width (with stand): 977.5 mm mm
Depth (with stand): 251 mm mm
Weight (with stand): 14.7 kg kg

Performance

Flicker-free technology: Yes
Low Blue Light technology: Yes

Multimedia

Built-in speaker(s): Yes
Built-in camera: No
Number of speakers: 2
RMS rated power: 14 W W

Design

Market positioning: Business
Product colour: Black

Ports & interfaces

Built-in USB hub: Yes
HDMI: Yes
Headphone out: Yes
USB hub version: 3.2 Gen 1 (3.1 Gen 1)
Number of downstream ports: 4
USB Type-C DisplayPort Alternate Mode: Yes
USB Power Delivery (USB PD): Yes
USB Power Delivery up to: 95 W W
HDMI ports quantity: 2
HDMI version: 2.0
DisplayPorts quantity: 1
DisplayPort version: 1.2
Built-in KVM switch: Yes
HDCP: Yes

Ergonomics

VESA mounting: Yes
Cable lock slot: Yes
Height adjustment: No
Panel mounting interface: 200 x 100 mm mm
Wall mountable: Yes
Cable management: Yes
Cable lock slot type: Kensington
Tilt adjustment: Yes
Tilt angle range: 10 - 2° °
On Screen Display (OSD): Yes
On Screen Display (OSD) languages: German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, Ukrainian

Power

Energy efficiency class (SDR): E
Energy efficiency class (HDR): G
Energy consumption (SDR) per 1000 hours: 40.9 kWh kWh
Energy consumption (HDR) per 1000 hours: 79.1 kWh kWh
Power consumption (typical): 41 W W
Power consumption (standby): 0.5 W W
Power consumption (off): 0.3 W W
AC input voltage: 100 - 240 V V
AC input frequency: 50/60 Hz Hz
Power supply type: Internal
Energy efficiency scale: A to G

Packaging data

Package width: 1071 mm mm
Package depth: 240 mm mm
Package height: 760 mm mm
Package weight: 19.3 kg kg
Package type: Box
USB cable length: 1.8 m m

Packaging content

Cables included: AC, USB, HDMI, DisplayPort, USB Type-C
Remote control included: Yes
DisplayPort cable length: 1.8 m m
HDMI cable length: 1.8 m m
Power cable length: 1.8 m m
Remote control batteries included: Yes

Sustainability

Sustainability certificates: ErP

Other features

Packaging content: quick start guide, safety guide
Weight: 14.7 kg kg
Height: 621.5 mm mm
Width: 977.5 mm mm
Depth: 251 mm mm
Compliance certificates: CE, EAC, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE
User controls: picture adjust (brightness, contrast, ECO, HDR, ACR, OD, X-res technology, black tuner), colour settings (6-axis, i-Style colour, blue light reducer, gamma, RGB range, colour temperature, user preset), PiP/PbP ( PiP/PbP, sub-source, PiP position, PiP size, swap, audio input), OSD (OSD H. position, OSD V. position, OSD time, OSD background, display information, language), miscellaneous (sharpness, video mode adjust, opening logo, power LED, USB-C speed, USB charge, KVM, DDC/CI control, dual mode), input select (source), audio settings (volume, mute audio), recall (recall all?)
Control panel: Input Select, +/Volume, -/Shortcut, Menu, Power

iiyama ProLite X4373UHSU-B2 - LED monitor - 43" (42.5" viewable) - 3840 x 2160 4K @ 60 Hz - VA - 450 cd/m� - 4000:1 - HDR10 - 3 ms - 2xHDMI, DisplayPort - speakers - matte, black — image 1

Adapt your display to match your pace

Switch seamlessly between two optimised modes to suit the task at hand. Dual Mode empowers your workflow by offering crystal-clear 4K resolution for precise data work, or a responsive 120Hz Full HD setting for smooth motion during live feeds and dynamic content. One screen with two smart ways to stay productive, without compromise

Deeper blacks and richer detail with VA panel

The VA panel offers exceptional contrast and deep blacks, revealing every nuance between light and dark. Enjoy vivid, lifelike images with minimal light bleed and excellent color depth, especially in darker scenes. Whether watching movies, editing content, or gaming, benefit from consistent picture quality and wide viewing angles that bring every detail to life.

Easy multi-device control with KVM

Easily switch between multiple computers using one monitor, keyboard, and mouse, making multitasking smooth and efficient.

Built-in audio without extra clutter

Enjoy clear, pleasant sound for calls, videos, and music while keeping your desk free of extra speakers, thanks to the integrated audio.

Double the view, double efficiency

Watch two sources at once. Use Picture-in-Picture to overlay a second feed or Picture-by-Picture to split the screen side by side. Perfect for multitasking, comparing content, or staying in control.

Reduced eye strain & fatigue

Work, study or play longer without eye fatigue, thanks to flicker-free technology and reduced blue light emissions. These features help minimize eye strain and improve visual comfort, allowing you to stay focused and productive throughout the day.

Customer Reviews

Authorised Technology Partners

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